A Novel Printable Watermarking Method in Dithering Halftone Images

Table 1

The black pixel numbers of eight sub-subimage pairs in the bottom-left subimage of Figure 2(d).

	# Black pixels		The difference of black pixel numbers between and
	0	0		2	2
2	23	33	10
4	0	0	0
6	18	37	19
8	0	0	0
10	3	6	3
12	0	0	0
14	1	9	8